View Full Version : load impedance??
kingjames
12-02-2005, 08:27 PM
I have a Mac 4200 receiver and was wondering if I would damage it ,if I ran a set of 8 ohm and 4 ohm speakers at the same time? Both sets are JBL Thanks in advance.
:banghead:
speakerdave
12-02-2005, 08:41 PM
That would be a load of less than 3 ohms, so unless the amp is rated to be stable at 2 ohms, I wouldn't do it.
David
Zilch
12-02-2005, 08:56 PM
Again, be aware you're going to create a sonic mess running two sets of speakers playing the same program material in the same listening space concurrently.
More is not better....
Robh3606
12-02-2005, 10:07 PM
Be carefull running pairs of 8 ohms as well. The L100 dips real low to almost 4 ohms over parts of it's curve. So a pair of them could be trouble as well. Always a good idea to check the impedance plots to see what you really have as the 8 ohm ratings are nominal.
Rob:)
johnaec
12-03-2005, 07:52 AM
Be carefull running pairs of 8 ohms as well. The L100 dips real low to almost 4 ohms over parts of it's curve. So a pair of them could be trouble as well. Always a good idea to check the impedance plots to see what you really have as the 8 ohm ratings are nominal.Good advice! My 4315A's are rated 8 ohm, but an impedence plot has them dipping down to around 2 ohms in the lower midrange! 'Kept tripping the protection circuits on a cheap 8 ohm receiver I have - 'works fine with amps rated 4 ohms.
John
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